I have spent the last three days scrolling through some of the most insane mod videos I've ever seen. Modders are taking games that have been decompiled with Claude, and mashing them up with other games. As the week has gone on, there have only been more clips of these mods pouring out on X/Twitter.
One person created a mashup of World of Warcraft and Call of Duty: World at War; another combined Escape From Tarkov with Skyrim. There’s even one that takes Insomniac’s Spider-Man and combines it with Batman Arkham City, where the player is able to swing around Batman’s turf.
These mods are everywhere online right now, though they thankfully haven’t filtered into modding websites like Nexus Mods yet. But, with the sheer volume of these mods and with how accessible Opus 5.5 is, it feels like it’s only a matter of time before the gates are fully torn down. And if that happens, it could change the face of the modding scene entirely.
Claude Opus 5.5 launched last week, promising cheaper tokens and more efficient code work. I'm sure that Anthropic meant for it to be used by professionals, but gamers have used it to create some of the weirdest mods I have ever seen.
Opus is a model that can power AI agents, which can be deployed to create entire games from the engine, to the art and enemy behavior. Brendan Jowett has a great video on YouTube of the model in action: He develops little slices of video games and compares them directly with the same tasks from OpenAI’s Astra 6 model. While the results of both are far from what you’d expect from a fully featured game, Claude’s new model has clearly come a long way.
The problem with the examples in Jowett’s video is that while the models are good at piecing together disparate parts of a game, enemy AI (lol) and art assets are lackluster to say the least. In one of the slices, a space combat sim, the space fighter flys at a diagonal angle, while moving in a straight line ahead, and shooting. In another slice enemies completely ignore the player character.
As good as Claude Opus 5.5 seems to be, it’s still lightyears away from developing something like a true mashup of Minecraft and Elden Ring from scratch. But the model doesn’t have to start from scratch.
The big, driving force behind a lot of these mods is decompilation, where people are pointing Opus at a game and letting the agent break it down to its source code (here’s a handy blog if you want to really get in the weeds). Just earlier today, we covered Halo: Combat Evolved being decompiled and ported to run natively in a browser. Once that step is complete, it takes little effort to take that source code and work huge swaths of games into other games as mods, and with very little input from the user.
سەرچاوەی فەرمی بە زمانی ئینگلیزی: https://www.ign.com/articles/vibe-coded-mashup-mods-have-taken-over-x-this-week
